Comparison between multiwavelength infrared and visible pyrometry: Application to metals
Comparison between multiwavelength infrared and visible pyrometry: Application to metals
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DOI：
10.1016/j.infrared.2007.12.001
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发表时间：
2008-03-01
影响因子：
3.3
通讯作者：
Duvaut, Th.
中科院分区：
文献类型：
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作者：
Duvaut, Th.
一种用于金属材料非侵入式温度测量的装置已经开发出来。此外，由于无法先验地了解金属的发射特性，因此使用多波长高温测量通过以下方式解决这个问题：同时测量N个波长的热发射。使用参数识别技术，包括发射率的物理或经验模型来确定温度和光谱发射率。该方法适用于500 K到金属材料的熔点/凝固点之间的温度范围。比较了可见光和红外光谱范围内获得的结果。研究了各种金属样品（钢、钛），对于每个样品，使用更合适的模型，识别温度和实验（热电偶）温度之间的相对偏差低于 2%。对于某些材料组（奥氏体不锈钢和碳钢），选择了一个或多个能够为类似样品提供合适结果的模型。 (C) 2007 Elsevier B.V. 保留所有权利。
A device for non-intrusive temperature measurements of metallic materials has been developed. Moreover, as the emissive properties of the metal cannot be known a priori, multiwavelength pyrometry was used to address this issue in the following way:Simultaneous measurement of thermal emission at N wavelengths.Use technique of parameter identification including a physical or an empirical model for the emissivity to determine temperature and spectral emissivity.This method was applied to a temperature range between 500 K and the melting/solidification point of the metallic materials. The results obtained in visible and infrared spectral range were compared. Various metallic samples were studied (steels, titanium), and for each sample, the relative deviation between identified and experimental (thermocouple) temperatures is lower than 2%, using the more suitable models. For some groups of materials (austenitic stainless steels, and carbon steels), one or several models giving suitable results for similar samples were selected. (C) 2007 Elsevier B.V. All rights reserved.